https://static1.squarespace.com/static/53dd6676e4b0fedfbc26e...
If the communities served by a road had to pay the full price of the road you'd see a lot of little 8-10 house hamlets with 10 million dollar bridges pack up and leave.
which is to say it doesn't pass the smell test. I don't know where the studies go wrong but something isn'c adding up.